Clutch-removing device



May 20, 1924.

W. A. GRANT CLUTCH REMOVING DEVICE Filed Oct. 1. 1925 mike-2S PatentedMay 20, 1924.

- UNITED STATES WILLIAM A. GRANT, or DORA, ALABAMA.

I CLUTCH-REMOVING DEVICE.

Application filed October 1, 1923. Serial No. 665,858.

To all whom it may concern.

Be it known that I, WILLIAM Aneos GRANT, a citizen of the United States,re-

- siding at Dora, in the county of Walker and State of Alabama, haveinvented certain new and useful Improvements in Clutch-Removing Devices,of which the following'is a specification.

This invention relates to a clutch removing device, and particularly toa construction for compressing the clutch spring so that it may bereleased and the clutch member tensioned thereby removed. y

In prior constructions of this character where the compressing screw wasrigidly mounted upon the clutch member accurate individual adjustment ofthe separate attaching means was necessary in order that the screwmember should travel in a true axial line relative to the spring toavoid tilting or side movement thereof and such adjustment required timeand skill in order to dispose the screw supporting plate parallel withthe face of the clutch flange. In other types of such spring compressorsthe hook connection with the'clutch did not afford a sufficiently firmor fixed attachment to effect the proper pressure upon the spring in astraight line and were liable to accidentally change position during thereleasing action.

This invention has for an object to provide a novel and improvedconstruction in which the plate carrying the compressing screw isattached to the clutch but has a restricted movement upon its attachingmeans to permit the plate to assume a position parallel with the end ofthe clutch in order to dispose the screw in a line axially of thespring.

A further object of the. invention is to provide an improvedconstruction of attaching bolt having a portion of less diameter thanthe aperture in the plate by which it is carried and also capable oflimited longitudinal movement thereon so that upon the application ofpressure the plate may adjust itself into seating engagement with anabutment on the bolt.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawing Figure 1 is an elevation of the invention with the clutchand tool head in section;

Figure 2 is a section on ure 1;

line 22 of Fig Y:

Figure 3 is a similar view on line 3'3 of Figure 1;.and

Figure 4 is a sectionon line 44 of Figure 1. i

The invention is particularly adapted for application to a clutch of thetype used in Like numerals refer to like parts throughout the severalviews.

the Chevrolet automobile and is shown as so applied, but is not confined'in its use to such particular form of clutch.

In this disclosure of the invention the nu-' meral 10 designates a plateor bar of any desired size or configuration provided at opposite sidesof its longitudinal center with I apertures 11 therethrough. throughthese apertures are the attaching bolts 12 which are provided with aportion 18 of less diameter than the aperture of the plate and with anabutting shoulder 14 against which the plate seats when the-attachingbolt is connected to the clutch. This bolt is also provided with a pin15 by which it is retained against removal from the plate and a threadedend portion 16 adapted to engage cooperating apertures 17in the flange18 of the clutch member 19, these latter being of the usualconstruct-ion:

The attaching bolt just described may be parts Extending duplicated toany desired extent, and two disk 24 is mounted upon a relatively fixedpin 25 and held in driving contact by a tension spring 26 which bears atits outer end against a washer plate 28 and is retained under tension bya cross pin 27. The tool head when applied to the spring as shown inFigure 1 is provided with a slot or recessed portion 29 which embracesthe pin so that the end of the head may bear against the plate 28compressing the spring so that the pin 27 may be brought into alignmentwith an aperture 30in the clutch The plate 1O has collar 19 and removedfrom the supporting post 25. For this purpose thepost is capable, of alimited longitudinal movement and the 'base of the slot 29 by engagementwith the pin will move it into position for such disconnection.

In re-assembling the parts an opposite operation occurs as the springis'primarily placed under tension in order to permit the insertion ofthe pin through the supporting..post.-

The operation of the invention will be apparent from the foregoingdescription and it will be seen that it is only neces sary. to; thread.the attaching bolts into the I usual flange of the clutch to an equalex-o tentand tov dispose: the-,tool head" over the retaining pin. the.screw memberthe supporting plate is carried'into engagement with theabutments 14L upon theattaching loolts andlitsloosc connect-iontherewith permits said 'plate'to:

adjust itself for the equalization w of any minor inaccuracies :andpermits ether ,tool -head: to y travel uin a direct line-axially of thespring so-that all: danger-: of twisting or sidei movement;thereofwisavoided; This construction permits the attaching bolts to besuccessively applied;and-adjusted andef fects the operation of the.compressln g screw by a single means while its supporting plate isrigidly held against accidental displacement.

Th'e invention also presents a very simple andcefl icient,constructionadapted' to he economically manufactured and for quick application ito aclutch 'member without the. necessity of skilled :labor for thatpurpose.

While the specific. details of construction have been shown -a-nd.descriibed,- still the invention is not confined thereto aszchanges and:alterations may. bemade therein without departingirom the spirit of theinvena tion'as recited in thefollowing claims. 1

lVhen pressure is applied by:

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a clutch removing device, a sup porting plate formed withapertures, a pres-- sure screw mounted therein and provided-'- with aswivele-d head, and attaching hbolts" for said plate having a diameter;lesswthan the apertures-in the plate through which they pass andthreaded to engagea portion;

of said clutch.

3. In -a clutch removing device, a, supporting plate formed withapertures, a pressurescrew'mounted therein and provided-1 with aswiveled head, attaching-bolts for-- said plate having a diameter lessthan the apertures inthe plate through which they;

pass and threaded to engage a portionof. said clutch, and a fixedalbutment UPOIIBHJHl :bolts' against which said plates-bears when underpressure.

4. a In a clutch removing device, a support-= ing plate formed withapertures, a pressure screw mounted therein and provided-i with aswiveled head, attaching bolts for-- pass, an; abutment upon saidboltsagainst -.which-'said platehloears when under pres;

sure, and a retainingpin extended-through said bolt to preventdisconnection from said plate.

In testimony whereof ll affix my ture. I

WVILLIABL A. GRANT;

signasaid plate havinga .diameteryless; thani'the apertures' in theplate through which they.

